166.204.0.0/20

AS20057 · AT&T Enterprises, LLC

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Summary

Country	United States
Domain	att.com
ASN	AS20057
Registry	ARIN
ID	AEL-360

WHOIS Details

NetHandle:      NET-166-183-0-0-1
OrgID:          AEL-360
Parent:         NET-166-0-0-0-0
NetName:        AEL-360
NetRange:       166.183.0.0 - 166.209.255.255
NetType:        allocation
RegDate:        2025-04-01
Updated:        2025-04-01
Source:         ARIN


OrgID:          AEL-360
OrgName:        AT&T Enterprises, LLC
CanAllocate:    
Street:         208 S. Akard St.
City:           Dallas
State/Prov:     TX
Country:        US
PostalCode:     75202
RegDate:        2024-11-22
Updated:        2025-10-29
OrgAdminHandle: ZS44-ARIN
OrgTechHandle:  ICC-ARIN
OrgTechHandle:  ZS44-ARIN
OrgAbuseHandle: ABUSE7-ARIN
OrgRoutingHandle:   ROUTI59-ARIN
Source:         ARIN


POCHandle:      ABUSE7-ARIN
IsRole:         Y
LastName:       abuse
FirstName:      
Street:         2701 W 15th ST
City:           Plano
State/Prov:     TX
Country:        US
PostalCode:     75075
RegDate:        2002-08-24
Updated:        2025-08-18
OfficePhone:    +1-919-319-8167
Mailbox:        [email protected]
Source:         ARIN


POCHandle:      ZS44-ARIN
IsRole:         Y
LastName:       IPAdmin-ATT Internet Services
FirstName:      
Street:         7277 164th Ave NE
Street:         Attn: IP Management
City:           Redmond
State/Prov:     WA
Country:        US
PostalCode:     98052
RegDate:        2000-05-17
Updated:        2025-08-18
OfficePhone:    +1-888-510-5545
Mailbox:        [email protected]
Mailbox:        [email protected]
Source:         ARIN


POCHandle:      ICC-ARIN
IsRole:         Y
LastName:       IP Team
FirstName:      
Street:         200 S. Laurel AVE
City:           MIDDLETOWN
State/Prov:     NJ
Country:        US
PostalCode:     07748
RegDate:        2002-09-24
Updated:        2025-08-18
OfficePhone:    +1-888-876-2382
Mailbox:        [email protected]
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 166.204.0.0/16

No nearby ranges found.

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address	ASN	Details
118.24.128.100	AS45090 Shenzhen Tencent Computer Systems Company Limited	`1.00ms` from Chengdu, CN
91.17.142.100	AS3320 Deutsche Telekom AG	`2.61ms` from Duesseldorf, DE
98.209.168.20	AS7922 Comcast Cable Communications, LLC	`5.44ms` from Flint, US
109.87.113.116	AS13188 CONTENT DELIVERY NETWORK LTD	`6.99ms` from Kharkiv, UA
82.163.246.164	AS200876 Evolving Networks Limited	`3.59ms` from London, GB
54.197.183.116	AS14618 Amazon.com, Inc.	`0.25ms` from Reston, US
200.211.62.52	AS4230 CLARO S.A.	`3.30ms` from Sao Paulo, BR
1.98.185.116	AS4766 Korea Telecom	`2.18ms` from Seoul, KR
85.175.254.36	AS12389 PJSC Rostelecom	`16.30ms` from Tbilisi, GE
213.226.191.180	AS13194 Bite IP Network	`8.05ms` from Vilnius, LT
111.205.5.84	AS4808 China Unicom Beijing Province Network	`3.33ms` from Beijing, CN
181.52.129.228	AS10620 Telmex Colombia S.A.	`15.66ms` from Bogota, CO
34.77.21.228	AS396982 Google LLC	`0.15ms` from Brussels, BE
119.52.80.164	AS4837 CHINA UNICOM China169 Backbone	`10.07ms` from Changchun, CN
113.188.160.84	AS45899 VNPT Corp	`3.54ms` from Ho Chi Minh City, VN
68.203.88.196	AS11427 Charter Communications Inc	`13.87ms` from Houston, US
81.101.248.100	AS5089 Virgin Media Limited	`8.71ms` from London, GB
34.175.12.4	AS396982 Google LLC	`0.09ms` from Madrid, ES
167.57.64.212	AS6057 Administracion Nacional de Telecomunicaciones	`1.80ms` from Montevideo, UY
209.16.158.52	AS53589 PlanetHoster	`0.94ms` from Montreal, CA
185.103.8.4	AS201011 Core-Backbone GmbH	`0.41ms` from Nuernberg, DE
191.253.227.244	AS28580 Cilnet Comunicação e Informática S.A.	`1.94ms` from Osasco, BR
92.162.25.116	AS3215 Orange S.A.	`3.57ms` from Paris, FR
50.45.223.212	AS20055 Wholesail networks LLC	`5.57ms` from Portland, US
119.199.222.20	AS4766 Korea Telecom	`7.20ms` from Seoul, KR

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

traceroute -a -n -q1 -f3 -m14 166.204.7.221

traceroute to 166.204.7.221 (166.204.7.221): 14 hops max, 52 byte packets

3 [AS3223] 5.254.107.86 3.933 ms

4 *

5 *

6 [AS7018] 192.205.37.41 142.082 ms

7 [AS7018] 32.130.91.82 146.18 ms

8 *

9 *

10 *

11 [AS20057] 166.147.125.36 147.207 ms

12 *

13 *

14 *

Measurement taken from

IPinfo ProbeNet in Portsmouth, GB

On December 20th 2025

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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